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CF3SO3H and CF3SO3H/CD3CN adducts in silicalite channels as model systems for H‐ZSM‐5 Brønsted acidity evaluation

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Abstract

The vibrational properties of triflic acid and of triflic acid–acetonitrile adducts adsorbed in silicalite channels are described. The spectroscopic modifications induced on triflic acid by the acid–base interaction are compared with those of the HCl/acetonitrile adducts formed in situ in the silicalite channels, and with those of the H‐ZSM‐5/acetonitrile and of the H‐Nafion/ acetonitrile systems. It is concluded that triflic acid in silicalite shows an acidity almost comparable to that of H‐ZSM‐5 and of H‐Nafion.

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Authors and Affiliations

  1. Dipartimento di Chimica Inorganica, Chimica Fisica e Chimica dei Materiali, Università di Torino, Via P. Giuria 7, I‐10125, Torino, Italy E-mail:

    C. Pazè, G. Turnes Palomino & A. Zecchina

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  1. C. Pazè
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  2. G. Turnes Palomino
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  3. A. Zecchina
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Pazè, C., Turnes Palomino, G. & Zecchina, A. CF3SO3H and CF3SO3H/CD3CN adducts in silicalite channels as model systems for H‐ZSM‐5 Brønsted acidity evaluation. Catalysis Letters 60, 139–143 (1999). https://doi.org/10.1023/A:1019002923133

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